Crusher – what are the lethal factors at work

“When the crusher was working, it (the crusher) stopped there for no apparent reason, and then I had to hurry up with the knife to avoid burning the motor.” This sentence is a crusher operation in a concentrator. Personnel, he said that if you can’t touch its temper, it will often cause the crusher to crash.

Therefore, when crushing the material, you must pay attention to the uniformity of the cutting.

What are the main factors that affect the work of the jaw crusher?

In general, the main factors that affect the work of the jaw crusher are the meshing angle and the number of revolutions.

The meshing angle is the angle between the movable jaw and the fixed jaw. According to the calculation, the maximum meshing angle can reach 32 degrees. In actual use, it is less than 25 degrees, generally around 18-20 degrees. If the bite angle is too large, the ore in the crushing cavity will be squeezed upwards.

Causing injury or damage to other equipment. And the productivity will decrease with the increase of the bite angle (increased crushing ratio). Adjusting the size of the mine discharge port also changes the size of the bite angle. In actual life, the size of the ore discharge port is adjusted according to the requirements of the ore discharge particle size.

Therefore, it is reasonable to enlarge the discharge port as much as possible under the requirement of ensuring the particle size of the product. The size of the ore discharge port can be adjusted by adjusting the block. When adjusting the size of the ore discharge port. Pay attention to the relationship between the crushing ratio and the productivity.

Within a certain range, increasing the number of revolutions of the eccentric shaft can improve the production capacity of the crusher. But it will also increase the power consumption of crushing unit weight of ore. If the rotation speed is too high, the crushed ore in the crushing chamber will not be discharged in time, resulting in blockage. Which will reduce the production capacity and increase the power consumption. Therefore, the jaw crusher should have an appropriate number of rotations.

The eccentric shaft, connecting rod, movable jaw plate. Shaft and lining plate of the jaw crusher are the main wear parts. Which need to be lubricated and replaced frequently.